根據語法書上改編：
表示許可。在表示請求、允許時，might比may語氣委婉些。否定回答可用can"t或mustn"t，表示：不可以、阻止。May I come in? Yes, you can/No, you can"t(mustn"t).
Might I borrow your pen? No, you ,mustn"t.
用於祈使句中表示祝願。May you live long!祝您長壽！
表示無把握的推測，might比may的語氣更加不肯定，語氣較委婉（用於肯定句中，疑問句用can）。may/might+動詞原形或動詞的進行時表示對現在的推測；may/might+動詞的完成式或完成進行式表示對過去的推測。He may be very busy now.
They might be waiting for you outside.
He may have left his tie in the office this afternoon.
I might have been to the library.
親：高老師祝你學習進步，每天都開心V_V！
望採納，thx！
根據語法書上改編：
表示許可。在表示請求、允許時，might比may語氣委婉些。否定回答可用can"t或mustn"t，表示：不可以、阻止。May I come in? Yes, you can/No, you can"t(mustn"t).
Might I borrow your pen? No, you ,mustn"t.
用於祈使句中表示祝願。May you live long!祝您長壽！
表示無把握的推測，might比may的語氣更加不肯定，語氣較委婉（用於肯定句中，疑問句用can）。may/might+動詞原形或動詞的進行時表示對現在的推測；may/might+動詞的完成式或完成進行式表示對過去的推測。He may be very busy now.
They might be waiting for you outside.
He may have left his tie in the office this afternoon.
I might have been to the library.
親：高老師祝你學習進步，每天都開心V_V！
望採納，thx！